Stock Market Update

[BRIEFING.COM] The S&P 500 (+0.6%), Nasdaq Composite (+1.2%), and DJIA (+0.2%) are higher just before midday as the market's largest names recover nicely from yesterday's retreat. 

Meanwhile, the small-cap Russell 2000 (+0.6%) and S&P Mid Cap 400 (+0.5%) hold solid gains, though they remain well into negative territory for the week. 

The consumer discretionary sector (+4.5%) is the top gainer by a wide margin amid Amazon's (AMZN 246.00, +23.14, +10.38%) rally. The company turned in an impressive earnings report, which featured a 20% jump in AWS revenues. 

Tesla (TSLA 457.25, +17.15, +3.90%) is also up nicely, with positive sentiment across the mega-caps pushing the Vanguard Mega Cap Growth ETF 0.9% higher. 

The information technology sector (+0.4%) has seen mixed performances from its mega-cap names so far. Apple (AAPL 270.97, -0.43, -0.16%) trades slightly lower despite an earnings beat of its own, while NVIDIA (NVDA 205.83, +2.94, +1.45%) is higher after Samsung announced plans to buy 50,000 of the company's GPUs. 

The broader market is mixed, with five S&P 500 sectors trading higher. Advancers outpace decliners by a roughly 5-to-4 margin on the NYSE and a roughly 3-to-2 clip on the Nasdaq.